[JENA-759] New Version of HTTP client throw HTTP400 error when using "sparqlService"

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Not A Problem
• Affects Version/s: Jena 2.12.0
• Fix Version/s: Jena 2.11.1
• Component/s: ARQ
• Labels: ARQ HTTP SPARQL errorCode remote

Environment

OS : Ubuntu
Using eclipse, maven and Junit.

• Assignee: Andy Seaborne
• Reporter: ArthurVaisse-Lesteven
• Created: 07/Aug/14 13:19
• Updated: 29/Aug/14 17:52
• Resolved: 08/Aug/14 08:53

Description

Call to a remote strabon SPARQL endpoint that was working on Jena 2.11.1 do not work properly in version 2.12.0.

This function :

public void queryStrabon(final String query, final RDFDatatype datatype, final String... parameters) {
        final QuerySolutionMap map = new QuerySolutionMap();

        System.out.println(query);

        for (int i = 0; i < parameters.length; i += 2) {
            final RDFNode node = ResourceFactory.createTypedLiteral(parameters[i + 1], datatype);
            map.add(parameters[i], node);
        }

        final ParameterizedSparqlString pss = new ParameterizedSparqlString(query, map);

        final QueryExecution qe = QueryExecutionFactory.sparqlService(this.endpointURL + "Query", pss.asQuery());
        final ResultSet resultSet = qe.execSelect();

        while (resultSet.hasNext()) {
            System.out.println(resultSet.next());
        }

        System.out.println("lines: " + resultSet.getRowNumber());
    }

while working on Jena 2.11.1 do not work on Jena 2.12.0 and got the following stack trace at execution time :

HttpException: 400
	at com.hp.hpl.jena.sparql.engine.http.HttpQuery.rewrap(HttpQuery.java:414)
	at com.hp.hpl.jena.sparql.engine.http.HttpQuery.execGet(HttpQuery.java:358)
	at com.hp.hpl.jena.sparql.engine.http.HttpQuery.exec(HttpQuery.java:295)
	at com.hp.hpl.jena.sparql.engine.http.QueryEngineHTTP.execSelect(QueryEngineHTTP.java:346)
	at model.SpatioTemporalModelSTrabonEndpointImpl.getInterestingEvents(SpatioTemporalModelSTrabonEndpointImpl.java:99)
	at model.SpatioTemporalModelStrabonEndpointImplTest.Test_get_interesting_events0(SpatioTemporalModelStrabonEndpointImplTest.java:86)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)

Additionaly, the server says that the query isn't set or is invalid.